4 Pack 1/4-20 Thumb Screws, 3/4" Stainless Steel, Black Knob

The LIZIFEQZ 3/4" 1/4-20 Thumb Screws with Black Aluminum Knobs provide a compact, tool-free fastening solution for thin panels, enclosures, and marine hardware. The short 3/4-inch (19mm) thread length is designed for applications where longer screws would bottom out or protrude. Each screw features a 304 stainless steel threaded shaft for corrosion resistance and a black anodized aluminum knob with a non-slip frosted texture. The 1/4-20 coarse thread is compatible with standard T-nuts, threaded inserts, and captive nuts used in a wide range of equipment. The T-wing knob ergonomics allow for quick hand tightening and loosening without tools. Use them for electronic enclosures, 3D printer adjustments, camera rigs, boat canvas hardware, and more. Key Features: 3/4" (19mm) Thread Length – Ideal for thin panels and shallow holes 1/4-20 Coarse Thread – Standard for many applications 304 Stainless Steel Shaft – Rust-proof, durable Black Aluminum Knob – Lightweight, non-slip texture Tool-Free Operation – Hand-tighten only 4-Piece Set – Suitable for multiple projects Common Applications: Electronics Enclosures: Secure covers and panels 3D Printers: Bed leveling knobs, filament holder clamps Photography: Quick-release plates, cage accessories Marine: Bimini top strap screws, boat cover fasteners CNC & Woodworking: Shallow hold-down clamps, fence stops DIY Projects: Thumb screws for jigs and fixtures Product Specifications: Product: 1/4-20 Thumb Screw / Thumb Knob Screw Quantity: 4 Screws per Set Thread Size: 1/4-20 UNC (Coarse) Thread Length: 3/4 inch (19 mm) Material (Thread): 304 Stainless Steel Material (Knob): Black Anodized Aluminum Knob Diameter: Approx. 1.14 inches (29 mm) Knob Profile: Tee / Wing style Features: Non-slip texture, corrosion-resistant, tool-free Applications: Thin panels, enclosures, marine canvas, electronics, 3D printers

• ✅ Compact Length for Thin Panels – 1/4-20 Thumb Screws Short Version – These thumb screws feature a 3/4" (19mm) thread length, ideal for attaching components to thin panels, enclosures, and mounting plates. The shorter length prevents bottoming out and provides a clean fit for shallow holes.
• ✅ Tool-Free Fastening – 1/4-20 Thumb Screw for Quick Access – The large black aluminum knob allows you to tighten or loosen this 1/4-20 thumb screw by hand – no tools required. Suitable for equipment covers, electrical panels, or any application requiring frequent access.
• ✅ Rust-Proof 304 Stainless Steel – 1/4-20 Thumb Screw for Marine Use – The threaded shaft is made from corrosion-resistant 304 stainless steel, making this 1/4-20 thumb screw suitable for boat Bimini tops, outdoor gear, and humid environments. The black aluminum knob adds a sleek, professional look.
• ✅ Ergonomic Non-Slip Knob – Knob Screws for Repeated Use – The black aluminum knob features a fine frosted texture that provides a secure grip even with oily or wet hands. The T-wing shape offers excellent leverage, reducing hand fatigue during multiple adjustments.
• ✅ Versatile Threaded Knobs 1/4-20 for DIY & Electronics – Use these threaded knobs for securing 3D printer beds, CNC hold-down clamps, camera rigs, and LED panel connections. The 3/4" length is especially suited for shallow threads and thin-wall enclosures. Also works as Bimini top screws for boat canvas straps.